Description
M12 (12mm) MultiScrew Masonry Concrete Self Tapping Anchor Screw Bolts with Hexagonal Head Hex Lightning Thunderbolt Ankerbolt. Partially threaded over 100mm. M12 x 75mm, 100mm, 130mm 150mm, 200mm. Simply drill a hole using the correct masonry drill bit, remove the dust and debris and wind in. No need for plastic plugs. These bolts are classed as non-expansion anchors which means they won’t stress the concrete when fixing. Hexagonal Head Genuine Thunderbolt The unique patented concave thread design taps its own thread and provides a rapid, low torque installation with exceptional pull out resistance. It also allows the user to adjust or remove the bolt ensuring a secure and accurate installation. This stress free, non-expansion through fixing is the new solution for medium duty anchoring into concrete, brick, stone, wood and concrete block replacing the need for traditional anchors such as through bolts, shield, sleeve and drop-in anchors. This M12 concrete bolt requires a 12mm masonry drill bit. Always ‘over drill’ the hole by 20mm. The M12 Bolt requires a hole clearance through the fixture of 14mm. Therefore if you wish to use a washer then it would require an M14 washer hole to clear the thread on the bolt. Installation is quick and easy, making it the ideal general purpose anchor, even on temporary jobs as it’s completely removable. Using standard sized drill bits, the MultiScrew Concrete Anchor Bolts are a cost effective fix for any job.